You may have simplified $\displaystyle\frac{{100}}{{76}}\usepackage{cmbright}\Huge\$ . You need to simplify $\displaystyle\frac{{76}}{{100}}\usepackage{cmbright}\Huge\$ . Because 76 is divisible by 4, the fraction simplifies to $\displaystyle\frac{{19}}{{25}}\usepackage{cmbright}\Huge\$ , so that is the correct answer.